Heckler & Koch USP by Umarex air-maks-air-rifles Users should note that this

Users should note that this shuttle valve does give the compressors a unique sound compared to other compressors out there on the market

larger objective lenses

and no doubt other competitor products

Lighter weight:

Heckler & Koch USP by Umarex air-maks-air-rifles Users should note that thisDESCRIPTION This authentic replica of the Universal Self loading Pistol is interesting for collectors and fun shooters alike due to its rugged design and reliability. Non blowback operation was chosen for this CO2 pistol giving the shooters a system with superior accuracy and a higher number of shots by utilising the gas more efficiently. SPECIFICATION Caliber 4,5 mm (. 177) Steel BB Safety Thumb Operated Velocity approx. 93m s Magazine Capacity 22